1. Got Milk?

2. Milk Most wholesome & complete food Oldest agricultural industry
dates back 7,000 years

3. Care of Milk Milk is easily contaminated with bacteria
udder is close to ground
Pasteurization: heat to 161 degrees F for 15 seconds- kills bacteria

4. Dairy Breeds- Holstein
Holstein: most popular breed in U.S.
largest breed
most milk production
lowest butterfat in milk
black & white

5. Dairy Breeds- Jersey Jersey: smallest milk breed , light brown color
least milk
most butterfat
fat on meat is yellow
(because of butterfat)

6. Dairy Breeds
Guernsey: milk is yellower due to high content of carotene
Ayrshire: newest breed, looks like Holstein but red & white
good foragers of grass
Brown Swiss: oldest breed, dual purpose breed (meat & milk)

7. Dairy Breeds- Brown Swiss
Brown Swiss: oldest breed, dual purpose breed (meat & milk)

8. Milking Dairy cows require lots of high quality feed & water
Dairies usually milk 2 times each day (or every 12 hours)
udder is washed & dried
dip teats in iodine to disinfect & close sphincter muscle
milking machine pipes milk to a cooling tank

10. Milking
Any cows treated with antibiotics, milk is not suited to humans
can cause a whole truck of milk to be dumped out due to contamination
Lactation period = 10 months, dry = 2 months
Freshen: cows calve and begin to lactate
Colostrum: mothers first milk, loaded with antibiotics etc. for the calf